public static function create(Client $client, $name, array $params = array())
 {
     $data = $client->api('contracts')->create($name, $params);
     return static::fromArray($client, $data);
 }
 /**
  * {@inheritDoc}
  */
 protected function delete(array $parameters = array(), $requestHeaders = array())
 {
     $response = $this->client->getHttpClient()->delete('', $parameters, $requestHeaders);
     return $response->getContent();
 }